I don't know what it is and I dint want to, but this coffee is delicious and addictive. I grew up on this stuff in Massachusetts. I didn't realize what I had until I moved away after college. I have been many places and haven't enjoyed a real cup of Joe like this anywhere else. There is something special about this tuff that will give you just the right amont of caffeine and just hot enough to give to that warm internal feeling. And the donuts are awesome too!